These tools are recommended by Mike Dunbar in Windsor Chairmaking, and are used by chair-makers for boring or reaming holes in the seats and arms of chairs. Their design is ancient, going back to Roman times. Spoon bits have even been found in Viking excavations. Spoon bits are the traditional boring tools used with a brace – never use them with a power drill of any kind - for making chairs. Their key advantage over regular brace bits and power drill bits is that you can adjust the angle of the hole. This is very important in chairmaking, because all the angles are usually eyeballed. Another advantage is that they don’t have a lead screw, so they can drill successfully in a chair leg pretty much without having the lead screw peek out the other side. To sharpen, hone them on the inside cutting edge, never the outside edge.Made in England. Hand forged carbon steel.